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#4702354 - 03/21/18 07:00 PM [Cut Open] Denso 150-2006 - Virgin
DuckRyder Offline


Registered: 10/20/05
Posts: 4109
Loc: Atlanta






















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  • 2007 Toyota Prius Touring
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#4702526 - 03/21/18 09:22 PM Re: [Cut Open] Denso 150-2006 - Virgin [Re: DuckRyder]
pbm Offline


Registered: 04/19/04
Posts: 7480
Loc: New York
Why do Japanese, Korean, Thailand, Chinese etc...made filters always have STRAIGHT pleats?...while so many domestic filters are all WAVY???

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#4703909 - 03/23/18 06:41 AM Re: [Cut Open] Denso 150-2006 - Virgin [Re: pbm]
DuckRyder Offline


Registered: 10/20/05
Posts: 4109
Loc: Atlanta
What does “straight” pleats do for us?
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Robert
  • 2007 Toyota Prius Touring
  • 2005 Honda Civic Sedan
  • 1972 Ford F100
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#4704016 - 03/23/18 09:05 AM Re: [Cut Open] Denso 150-2006 - Virgin [Re: DuckRyder]
Tundragod Offline


Registered: 06/14/11
Posts: 178
Loc: MN
They look better in a Cut Open pictures.
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#4704304 - 03/23/18 02:24 PM Re: [Cut Open] Denso 150-2006 - Virgin [Re: Tundragod]
ZeeOSix Offline


Registered: 07/22/10
Posts: 17183
Loc: PNW
Don't want a model with misaligned or missing teeth. grin2
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#4705224 - 03/24/18 12:37 PM Re: [Cut Open] Denso 150-2006 - Virgin [Re: DuckRyder]
Yah-Tah-Hey Offline


Registered: 05/26/14
Posts: 3215
Loc: Columbus,Nebraska
banana banana banana

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#4705454 - 03/24/18 03:46 PM Re: [Cut Open] Denso 150-2006 - Virgin [Re: DuckRyder]
CR94 Offline


Registered: 03/20/16
Posts: 966
Loc: Western S.C. since 1996
Originally Posted By: DuckRyder
What does “straight” pleats do for us?
Tells us the media bundle wasn't buckled by excessive compressive stress, and didn't warp due to moisture.
_________________________
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#4705522 - 03/24/18 04:46 PM Re: [Cut Open] Denso 150-2006 - Virgin [Re: DuckRyder]
BlueOvalFitter Online   content


Registered: 02/28/03
Posts: 5719
Loc: Cajun Country, La.
I like the fact that some oil filter manufacturers put the plastic on the base plate. I'm sure this is done to keep the internal parts free from contaminants and the base plate rust free as well. I'm sure there is an extra charge for this plastic to be produced. Is it that much cost as to why the BIG filter makers can't do the same?
Thanks for the C&P.
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#4706020 - 03/25/18 05:34 AM Re: [Cut Open] Denso 150-2006 - Virgin [Re: DuckRyder]
sw99 Offline


Registered: 03/22/06
Posts: 2098
Loc: Colorado
Great pics thanks!
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#4706029 - 03/25/18 06:03 AM Re: [Cut Open] Denso 150-2006 - Virgin [Re: sw99]
DuckRyder Offline


Registered: 10/20/05
Posts: 4109
Loc: Atlanta
Originally Posted By: CR94
Originally Posted By: DuckRyder
What does “straight” pleats do for us?
Tells us the media bundle wasn't buckled by excessive compressive stress, and didn't warp due to moisture.


On the buckling by excessive compressive force: I’ve seen this brought up a couple of times - Doesn’t the center tube support the compression? It doesn’t seem that the media should be under any compressive stress. Is there something I am missing?

Originally Posted By: BlueOvalFitter
I like the fact that some oil filter manufacturers put the plastic on the base plate. I'm sure this is done to keep the internal parts free from contaminants and the base plate rust free as well. I'm sure there is an extra charge for this plastic to be produced. Is it that much cost as to why the BIG filter makers can't do the same?
Thanks for the C&P.


I agree that it is a nice touch. The o-ring was pre oiled as well. One of these, I’m pretty sure it was this one, the plastic was cracked where it wrapped over the seam and wasn’t held very tight.

You’re welcome for the C&P.

Originally Posted By: sw99
Great pics thanks!


Thank you and you’re welcome.

I’m still a bit puzzled by the hoopla on these, it appears to be nothing very special. If it was one of the majors like Fram, Purolator or Wix they’d be called on the carpet for not posting efficiency numbers (at least I can’t find any) , saying a black ADBV is silicone and using a picture of endcapless media in the literature.

This one BTW was a little over 6 bucks and fits 7317 applications.
_________________________
Robert
  • 2007 Toyota Prius Touring
  • 2005 Honda Civic Sedan
  • 1972 Ford F100
  • 2012 Volkswagen Jetta TDi

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#4707074 - 03/26/18 12:56 AM Re: [Cut Open] Denso 150-2006 - Virgin [Re: DuckRyder]
CR94 Offline


Registered: 03/20/16
Posts: 966
Loc: Western S.C. since 1996
Originally Posted By: DuckRyder
Originally Posted By: CR94
Originally Posted By: DuckRyder
What does “straight” pleats do for us?
Tells us the media bundle wasn't buckled by excessive compressive stress, and didn't warp due to moisture.


On the buckling by excessive compressive force: I’ve seen this brought up a couple of times - Doesn’t the center tube support the compression? It doesn’t seem that the media should be under any compressive stress. Is there something I am missing?
...
Fair question. I'd suspect whether the axial (spring+hydraulic) force is carried mainly by the media or by a center tube (or shared) probably varies widely, depending on the filter design and manufacturing details. On most modern cartridge filters I've seen, and maybe some spin-ons (e.g., end-capless Densos? early e-cores?) there's effectively no center tube* lending support against that force. Whether the funky crooked pleats we see in photos on bitog are due to compressive buckling failure or to other causes, I can't tell. Both cartridge filters I've removed so far from my present car came out undistorted, with the pleats still straight.

*Cartridges do have what amounts to center tubes as part of the cap, to support the media against inward (radial) collapse, at least in theory. (But in SOME brands of filters, the inside of the media bundle is so far outside the center tube that it could partially collapse to a considerable extent before touching the center tube.)
_________________________
2011 Toyota Prius now at 87K
1981 Mazda GLC (323) retired at 606K
1972 Subaru DL retired at 190K
1954 Chevrolet retired at 121K

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